During their Investigations of Cyber-crimes, authorities usually use what is referred to as "Whois database" (a Database that links an IP Address to an Internet provider's customer.) However, the wider adoption of IPv6 will threaten this process unless Internet Providers make considerable efforts to keep track of their IP Address assignments.
In fact, IPv6 was developed to deal with the long-anticipated IPv4 exhaustion (IPv4 offers "only" 4 294 967 296 possible addresses) by allowing 2128 (approximately 3.4×1038) addresses, making it potentially hundreds of times harder for Internet providers to keep their "Whois Databases" up to date.
In this sense, Authorities are threatening to make "things uglier" if Internet Providers don't agree on a self-regulatory method of Accurate IPv6 record-keeping.
In fact, IPv6 was developed to deal with the long-anticipated IPv4 exhaustion (IPv4 offers "only" 4 294 967 296 possible addresses) by allowing 2128 (approximately 3.4×1038) addresses, making it potentially hundreds of times harder for Internet providers to keep their "Whois Databases" up to date.
In this sense, Authorities are threatening to make "things uglier" if Internet Providers don't agree on a self-regulatory method of Accurate IPv6 record-keeping.
30/40